Product Features: 1. The new version of the accessory connects to dedicated headsets compatible with the full range of FAST helmets, MICH helmets, and Peltor Comtac walkie-talkies. 2. Tested and confirmed that Comtac I and Comtac II headsets can be connected to the full range of FAST helmets via the hook. 3. After using the hook, the earmuffs of the Comtac walkie-talkie headset detach from the curved headband and clip directly onto the hook, which attaches to the slots on both sides of the helmet. After installation, the earmuffs of the Comtac headset can rotate freely. Instructions for use: 1. Remove the earmuffs from the side brackets. 2. Remove the headset cable from the cable (the connecting cable must be disconnected). 3. Snap the earmuffs onto the hooks of the product (align them, both sides must snap into place). 4. Install on the helmet. 5. Wrap the headset cable around the top of the helmet and secure with tape. Includes: 1 headset attachment